Hybrid origin of European Vipers (Vipera magnifica and Vipera orlovi) from the Caucasus determined using genomic scale DNA markers

Table 3 Results of Patterson’s D-statistic test for taxa of putative hybrid origin (V. magnifica, V. orlovi)

Group	Individual based calculations					Population based calculations
Group	Number of tests, N	Patterson D, averaged across all tests	Number of ABBA sites, averaged across all tests	Number of BABA sites, averaged across all tests	Admixture proportion, f, %	Patterson D	Number of ABBA and BABA sites
V. magnifica	9968	0.24 ± 0.23	9.71 ± 2.60	5.99 ± 2.40	6.39 ± 6.05	0.26 ± 0.08	77
V. magnifica	9968	-0.57–0.86	2–20	1–16	-13.74–22.33	0.08–0.45	77
V. orlovi	59859	0.50 ± 0.18	16.63 ± 3.43	5.56 ± 2.30	19.02 ± 7.24	0.53 ± 0.03	135
V. orlovi	59859	0.29–1.0	5–29	0–16	-8.59–41.23	0.43–0.60	135

Statistics for individual-based tests are reported as the mean ± SD and range calculated across all individuals evaluated as the P2 taxon. For these tests, the P1 taxon is always represented by V. kaznakovi, and the P3 taxon is always represented by V. renardi. Values reported for the population-based analyses represent the point estimate of D, and the range of D obtained from 100 resampled datasets

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